The temperature on July 30, 1884 was about 19.0 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 51%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 19 » More than sixty tornadoes strike the Southern United States, one of the largest tornado outbreaks in U.S. history.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
July 5 » Germany takes possession of Cameroon.
August 5 » The cornerstone for the Statue of Liberty is laid on Bedloe's Island (now Liberty Island) in New York Harbor.
October 14 » George Eastman receives a U.S. Government patent on his new paper-strip photographic film.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage December 7, 1911
The temperature on December 7, 1911 was between 0.1 °C and 7.5 °C and averaged 4.5 °C. There was 3.5 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 29 » Italy declares war on the Ottoman Empire.
October 10 » The day after a bomb explodes prematurely, the Wuchang Uprising begins against the Chinese monarchy.
Day of death April 9, 1947
The temperature on April 9, 1947 was between 1.1 °C and 9.4 °C and averaged 4.4 °C. There was 2.4 mm of rain during 3.5 hours. There was 7.3 hours of sunshine (54%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the northwest. Source: KNMI
April 9 » The Journey of Reconciliation, the first interracial Freedom Ride begins through the upper South in violation of Jim Crow laws. The riders wanted enforcement of the United States Supreme Court's 1946 Irene Morgan decision that banned racial segregation in interstate travel.
April 28 » Thor Heyerdahl and five crew mates set out from Peru on the Kon-Tiki to demonstrate that Peruvian natives could have settled Polynesia.
July 6 » The AK-47 goes into production in the Soviet Union.
September 9 » First case of a computer bug being found: A moth lodges in a relay of a Harvard Mark II computer at Harvard University.
November 2 » In California, designer Howard Hughes performs the maiden (and only) flight of the Hughes H-4 Hercules (also known as the "Spruce Goose"), the largest fixed-wing aircraft ever built.
November 20 » The Princess Elizabeth marries Lieutenant Philip Mountbatten, who becomes the Duke of Edinburgh, at Westminster Abbey in London.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I100977.php : accessed October 11, 2026), "Henderikus Veenstra (1884-1947)".
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